Tuning Spring of hammer of my Bantam Sniper got broken..

[Emu]

Well,

I was shooting and all of a sudden the cocking become very hard and then the shooting speed (fps) became very few.

The spring of the hammer got broken.

¿Is this common?

¿Is there a way to prevent it?

Already came to a spring manufacturer and they will give me two tomorrow at noon. Let's see how they look.

I never had this situation before.

 

[Glem.Chally]

Strange, maybe it's just a faulty one.

 

[L.Leon]

I have thousands of cocking cycles through mine and it's still going. Can't even guess what would make it break. Could/would you post an image of your busted spring?

 

[Emu]

Of course, I will.

I have it in my car.

When I came back with the new ones, I will show you both, the new ones and the broken one.

 

[Emu]

There it goes:

 

[L.Leon]

@emu, thanks, and wow that sure is a broken spring. How many rounds down range before that happened? And where did you get the spares?

 

[Emu]

Maybe 1500 shots

I search in Google maps where there was a Spring manufacturer close to my house (8 miles). It was a very small place but they make all size of springs. I brought the broken one with me. They took all measures (Caliber of the wire, internal diameter, external diameter, length, number of cycles, etc.)

The rifle is now shooting back and I am on 805 fps with JSB's 33.95 grains.... (Just made the calculation to foot pounds. I will leave it there.)

The price of each spring: equivalent to $2.25 us dlls. Less than a day to be made and ready to pick up.

The cocking feels much gentle with the new spring.

 

[L.Leon]

Thanks a lot @emu,...

 

[vmaxpro]

Wow that is crazy! At 800fps that springs not even hardly being worked either. 

 

[Emu]

Wow that is crazy! At 800fps that springs not even hardly being worked either.

Could you please explain.

Am I doing something wrong?



It's almost 48 foot pounds. Not bad!